NVSS 2146 82

NVSS 2146+82
Observation data (J2000.0[1] epoch)
ConstellationCepheus
Right ascension21h 45m 30s [1]
Declination+81° 54′ 55″ [1]
Redshift0.145 [1]
Characteristics
TypeGRG; gE(pec);[1]
Apparent size (V)4h50−1 Mpc [1]
Other designations
NVSS 2146+82, WN B2147+81, WN B2147+8141,[1][2] PGC 2785926

NVSS 2146+82 (WN B2147+81) is a giant radio galaxy, one of the largest known. At the time of its discovery in 2000, it was the second largest, second only to 3C236. The optical counterpart to the radio object is a peculiar giant elliptical galaxy.[1] The radio galaxy is 4.380 Mpc (14.29 Mly) across.[2]

The galaxy cluster in which this galaxy is situated has an Abell richness class of 0 or 1. The cluster members were misidentified when originally surveyed, as part of Zw Cl 2147.0+8155, a background rich cluster.[1]

See also

References

  1. ^ a b c d e f g h i Astronomical Journal, "Multiwavelength Observations of the Second-Largest Known Fanaroff-Riley Type II Radio Galaxy, NVSS 2146+82", Palma, Christopher; Bauer, Franz E.; Cotton, William D.; Bridle, Alan H.; Majewski, Steven R.; Sarazin, Craig L., Volume 119, Issue 5, pp. 2068-2084, May 2000, arXiv:astro-ph/0002033 , Bibcode:2000AJ....119.2068P , doi:10.1086/301347
  2. ^ a b Astronomy and Astrophysics, "J1343+3758: the third largest FRII-type radio galaxy in the Universe", J. Machalski, M. Jamroz, 17 October 2000, vol. 363, pp. L17–L20 (2000), arXiv:astro-ph/0010442 , Bibcode:2000A&A...363L..17M


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